Antinull usage and simulation in data filtering

AntiNull usage and simulation in data filtering are described here. Data items are compared. The method includes accessing a query or command to retrieve data. The query or command includes an identification of a data item, a logical operator and a specialized token. A comparison as defined by the logical operator between the data item and the specialized token is performed. The following illustrates the results of the logical operation on any data item and the specialized token: an equal logical operation results in true, a greater than logical operation results in false; a less than logical operation results in false; a greater than or equal to logical operation results in true; a less than or equal to logical operation results in true; a not equal logical operation results in false; an IN logical operation results in true; and a NOT IN logical operation results in false. As a result of the comparison, the data item may be retrieved.